Electrical apparatus



Jan. 23, 1923.

J, BIJUR. ELECTR CAL APPARATUS.

FILED JULY 3,1919y INVENTOR l JOSEPH SNUR .ATTORNEY Patented Jan. 23,1923'.

UNITED STATES PATENT OFFICE.

JOSEPH BIJUR, 0F NEW YORK, N. Y.,'ASSIGNOR T0 BIJUR MOTOR APPLIANCECOMPANY, A CORPORATION OF DELAWARE.

ELECTRICAL APPARATUS.

Application led July 3, 1919. Serial No. 308,466.

To all w hom. it muy concern Be it known that I, JosErH BiJUR, a citizenof the United States, residing at New York city, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Electrical Apparatus, of which the following is a clearand exact description, such aswill enable others skilled in the art towhich it appertains to make and use the same.

This invention relates to electrical generating and control apparatus,and with regard to its more specific features to the mechanicalapplication of the latter.

One of the objects is to provide electrical, generating and associatedcontrol apparatus, which shall be simple and compact in construction,and substantially proof against derangement from entry of water.

Another object is to provide control apparatus that can be installed andremoved with a minimum of time and trouble by persons wholly unfamiliarwith the character of the apparatus or the wiring diagram of the system.

Another object is to provide apparatus of the above type which shall beproof against tampering with delicate parts.

Other objects will be in part obvious and in part pointed outhereinafter.

The invention accordingly consists in the features of construction,combinations of elements and arrangementof parts which .will beexemplified in the construction hereinafter set forth, and the scope ofthe application of which will be` indicated in the following claims.

In the accompanying drawings in which is shown one of various possibleembodiments of the several features of my invention. Fig. 1 is aI viewin longitudinal section and on an enlarged scale of my apparatus showinga fragment of the generator 1. Fig. 2 is a `view in longitudinal sectionof the cover of my box, Fig. 3 is a view similar to Fig. Qof the casingmember of my box, Fig.

Ji is a view similar to Figs. 2 and 3 of the base member for the box,Fig. 5 is a top plan view of the casing member shown in Fig. 3. and Fig.(i is a fragmentary sectional View showing a somewhat modified foil.. ofthe invention.

Similar reference characters refer to similar parts throughout thedifferent views of the drawings.

n Referring now to the accompanying drawings, there is shown by way ofexample a generator having an armature 1 a casing 2, a window strip 21and :i metallic housing 3 for a` brush 4. This generator is preferablyof the well known type employed on motor .vehicles for maintaining astorage battery 1n charged condition. The generator is accordinglyprovided with any of the well known regulating means (not shown), tomaintain a function of the output constant for widely varying speeds.

l To allow the generator to charge the battery when the voltage of theIformer is sufficiently high, and at the same time to prevent a dischargeof the battery through the generatorcwhen the apparatus is idle orrunningrat speeds below that for which the generator builds up, Ipreferably employ an automatic electromagnetic switch 5 of well knownconstruct-ion, the details of which need not be described, as they areimmaterial to this invention.

To associate the switch 5 with the generator, I preferably mount uponthe latter a pressedmetal base 'member having a cylindrical wall 7 and aradially corrugated base 8 provided with a central circular embossment 9having a central opening 1() therethrough. spondingly shaped depression11 in the casing 2 and is firmly secured to said casing by means of ahold-down screw 12 threaded into the casing 2 as at 13 and locked inplace preferably by means of lock washer 14. To firmly hold the base 6against rotation about the hold-down screw, I preferably provide a dowel(S0, riveted to the bottom 8 of said base as at 61, to extend downwardlyinto a corresponding socket 62 in the casing Q.'

Switch 5 is preferably secured to the bottom 15 of casing member 16 bymeans of screws 17 passing from below and extending upwardly throughupward embossments 1S and 19 in said bottom.

Casing 16 is: closed by means of a cover member 2() having a rim 21telescoped over the wall of casing 16 to a. limiting position determinedby shoulder QQ. To secure the Embossment 9 fits into a` corre-V Vcover2O to the casing 16 I preferably provide the former with a plurality,preferably three outwardly embossed bayonet slots 23 and I provide thecasing 16 with a corresponding number of correspondingly placedoutwardly embossed lugs 24 for entry into the bayonet slots 23 to attachthe cover to the casing to form the closed switch-box. To prevent accesswithout detection to the electromagnetic apparatus contained within thebox, by unauthorized persons, I preferably attach a sea-ling cup 28 byriveting it as at 29 about an .aperture 26 in the cover said cover beingembossed outwardly as at 27 about said aperture. A screw 30 is threadedinto the cup and into an aligned aperture 25 in the casing to firmlysecure the cover and the casing together. Afleadplug 31 is disposedwit-hin the cup 28 to coverthe head of the screw 30, so that accesscannot be had to said screw withouty destroying said plug.

I preferably provide a jumper 32 electrically connecting switch 5 to aterminal 33011 the exterior of the casing. This terminal preferablyincludes a bolt- 34 to oneend of which the jumper 32 is attached as at35, a

terminal insulation piece 36 encircling said bolt and fitting over saidjumper end, the

casing 16 being,preferablyv embossed out-.

wardly as at 37 to lodge said insulation piece.

. The bolt 34 is insulated from the casing by means of a bushing'38. Anut 4() vis threaded onto boltv 34 and insulated from the casing by awasher 39, and secured by means of a lock washer 41. The terminal lug 42to which a lead-wire (not shown) is connected, is clamped in placeagainst the head of nut 40 by means of a bolt-nut 43 secured in place bya lock washer 44.

The box enclosing the switch 5 when the cover is locked in place,designated in its entirety by numeral 45, thus constitutesaself-contained control apparatus which cani not be tampered withwithout detection. The

.- box 45 is preferably, telescoped into the base to the base 6 due tovibration I preferably provide a spring-pressed lug 52 extending througha small circular aperture in the base wall 7, and through an aperture 51.registering therewith in the reduced portion 46 of the casing member16. The lug 52 is preferably Vsecured by riveting or equivalent means toa leaf-spring 53 extending along an arc of the casing portion 46, thespring being in turn riveted at its opposite end as at 54 'to the casingportion 46.

To electrically connect the control apparatus to the generator, Ipreferably vprovide a flexible conductor 55 secured at one end (notshown) to the control apparatus, extending through an opening 59 in thebottom 15 of casing 16, through a central longitudinal opening 56.is thehold-down screw 12 and terminating ina plug 57 adapted to be insertedfor quick detachable connection into a cylindrical metal socket 58formed preferably integrally with tlie brush box 3. The base member 6provides ample room for taking up the slack of conductor 55.

Although conductor 55 passes through an opening 56 in the dynamo casing,this opening is completely closed against entry of rain lwater or otherforeign matter'when casing 45 is in place.

By referring to Fig. 1 it is further noted `that the connection from theautomatic switch to the generator is completely enclosed, and only theconnection lto the ybattery is accessible. i

In the use of my apparatus, if the switch 5 should become out oforder,it is merely necessary to depress lug 5,2, delecting spring 53 andthen to turn the casing so that it may be lifted out of bayonetslots48.By opening window strap 2, accessishadto vthe terminal 57- which isreadily pulled' out of socket 58. There is no ,liklihood that anunskilled person may by'error lossen a connection other than thatbetween the casing 45 and base 6, for the reason that the screws 17holding the switch -in the box, andthe hold-down screw 13,

upon the apparatus is again-in condition for use. The window stri-p, 21should then preferably be again applied. It is thus seen that any personhowever unskilled in the handling of electrical apparatus and howeverunfamiliar wit-h the character of the apparatus and the connections .isable to remove a defective switch box and replace ity with an operativeone. vThus, 1f a. spare box 45 is available no automobile mechanic orelectrician need be called to repair the device should it become out of`order. The defective box yis returned to the manufacturer or servicestation where the cover maybe removed by an authorized person and theswitch repaired.

It is to be noted that an authorized person may remove cover 20 from theswitch box while the box remains on the generator, and this withoutaffecting any ot' the electrical connections. As the switch then extendsabove the top of casing member 16, its operation can thus convenientlybe observed under actual working conditions.

In F ig. 6 I have shown a modified form of the invention, in which theconnection of the switch and the generator is intended tobe broken whenrequired, by severing conductor 551 at its slack portion within base 61.For this purpose, I have shown an ordinary splice 70, taped as at 7l toavoid a ground, part of the tape being shown broken away. Other types ofconnection may of course be employed.

Although I have shown my automatic switch box as applied to aL generatorfor motor vehicles ,it is to be. understood that it is of more generalapplication, being useful also for stationary installations. It is alsoto be understood that my box may be employed for enclosing apparatusother than a switch for the specific purpose set forth.

It will thus be seen that there is herein described apparatus in whichthe several features of this invention are embodied, and which apparatusin its action attains the various objects ofthe invention and is well"suited to meet the requirements of practical use.

As many changes could be made in the above construct-ion and manyapparently widely diHerent embodiments of this invention could be madewithout departing from the scope thereof, it is intended that all mattercontained in the above description or shown in the accompanying drawingsshall be interpreted as illustrative and not in a .rim encircling saidbox, and a bayonet con-- -nection between said base member and said box.

3. Apparatus of the character described, comprising in combination, agenerator, a closed cylindrical box for containing control apparatustherefor, a base member se cured to said dynamo, said base memberhaving' ay rim encircling said box, and a bayonet connection betweensaid base member and said box, said bayonet connection comprising anelbow shaped embossment on one ot said members, and a co-operating lugembossment on the other.

4. Apparatus ot the character described, comprising in combination, agenerator, a box for control apparatus therefor, a base member' securedto said generator and einbracing the bottom of said box, and aquickdetachable connection between said base and said box, comprising abayonet connection, and a spring pressed latch to prevent undesiredlooseningr of said bayonet connection.

5. In combination, a generator, a box mounted thereon. for containingcontrol apparatus therefor, a base for said box, a cential hold-downscrew for sec1iring.said base to said generator, and an electricalconductor passing from said generator through a longitudinal opening insaid screw for connection to said control apparatus.

6. In combination, a dynamo, having a casing, a base member for controlapparatus, means securing' said base member to said casing, comprising ascrew passing centrally through said base into said casing, and a dowelpin near the edge of said base fitting into a depression in said casing.

c 7. In combination, a dynamo, having a casing and brushes, a basemember, means securingcsaid base member to said casing, a

dynamo control apparatus support, a quick-` detachable mechanicalconnection for securing said support to said'base, a conductor passingfrom said control apparatus through a central opening in said basemember, and a quick-detachable plug and socket connection between saidconductor and one of Said brushes.

8. In combination, a generator having af easing and brushes, a basemember, a screw, havinga central aperture for securing said base memberto said casing, a closed box mounted on said base member, for containingelectrical apparatus, a quick-detachable connection for securing saidboxto said base member, a conductor passing `from said electrical apparatusthrough said'aperture in said screw, vand a quick-detachable connectionbetween said conductor and a part' of said generator.

9. In combination, a generator having a casing, a cup shaped base membersecui'ed thereto, a boxl ,for generator control apparatus, said boxbeing telescoped into said base member, a quick detachable connection between said latter elements, and means to limit the entry of-,said boxinto said base with the bottom of saidv box 'spaced from the bottom ot'said base.

l0. In combination, a generator' having a casing, a circular base memberlsecured to vsaid casing and having an upstanding rim,

a box for control apparatus, said box having said supportfor securingthe latter to- Said 10 generator, Whereb saidapparatus fastening meansand sai support fastening means are inaccessible until said box` isremoved from its support.

In testimony whereof, I have Signed my 15 name to this specication this30th day of June, 1919.

JOSEPH BIJ UR.

